Tag Archives: monolithic rail upper reciever

by David Crane [email protected] DefRev discovered this item at SWAT Round-Up 2003 back in November at the Lewis Machine & Tool Co. (LMT) booth. It’s called the "MRP", which stands for "Monolithic Rail Platform". While the MRP is interesting, the most interesting aspect of the system is the quick-change barrel feature. MilitaryMorons.com (a very cool and informative site, by the ... Read More »